Just a quick note. I had to validate the sum of a DataGrid column after the user enters some quantities. The solution seemed to be obvious, but needs some tricking.

Todays lesson about AMFPHP and ByteArrays. Let me share some experience about sending ByteArrays to AMFPHP, store them in BLOB fields in MySQL, and after send them back to a Flash client.

Have you ever have troubles with filtering or sorting an ArrayCollection into two different controls? I wanted to keep the central data source for the different views, it has many advantages. If a new item appears in your original ArrayCollection, it will added to all views, for example.

Maybe you saw a few implementation of delegation in as3. I saw. But as as the changes in as3 made the traditional usage of the Delegate class unnecessary, you could wonder, where to use it.

I learned some neat trick about custom events. We all need to use custom events in the applications. The usual way is to pass the custom property in the constructor of the event, like